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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The toxicity of the test substance on Scenedesmus subspicatus was evaluated in a static test over a period of 72 hours (Hüls AG 1993) according to EU method C.3.
Five concentrations ranging from 28.0 to 253.0 mg/L (nominal) were tested. The stock solution (1 g/L) was stirred for 18 hours and filtrated.

Partial hydrolysis during the preparation of test solution and during the 

performance of the test has to be considered.

The ErC50 (72 h) was determined as >256 mg/L.

The ErC10 (72 h) was determined as 170 mg/L.


Key value for chemical safety assessment

EC50 for freshwater algae:
256 mg/L
EC10 or NOEC for freshwater algae:
170 mg/L

Additional information